Automatic dice shaking device

ABSTRACT

An automatic dice shaking and dispensing device comprises a dice cup fixed to a rotary shaft. A switch in the bottom of the cup is activated by the weight of dice dropped into the cup. The switch activates an electric motor which through gear mechanism drives a crank mechanism and timer at two different speeds. The fast driven crank mechanism agitates the dice cup by repeated camming the dice cup on its rotary shaft against restoring spring tension while the slow turning timer has a cam fixed thereto which eventually cams the dice cup far enough to dispense the dice. Finally, the timer and its cam releases the dice cup which is restored to its upright position by the spring tension and the timer deactivates the electric motor.

United States Patent [191 Suda [111 3,831,948 Aug. 27, 1974 AUTOMATICDICE SHAKING DEVICE [75] Inventor: Kataro Suda, Tokyo, Japan [73]Assignee: Yoshi, Ito, Tokyo, Japan [22] Filed: Apr. 19, 1973 [21] Appl.No.: 352,636

[30] Foreign Application Priority Data Apr. 24,'1972 Japan 47-4838] [52]US. Cl 273/145 R [51] Int. Cl. A63f 9/04 [58] Field of Search 273/145 R,145 A, 145 B, 273/145 C, 145 CA, 145 D, 145 E, 144 R,

144 A, 144 B, 138 A, 138 R; 46/245, 247,

[56] Reierences Cited UNITED STATES PATENTS 397,398 2/1889 Spiegel194/30 488,328 12/1892 Clawson 194/30 491,971 2/1893 Williams et al.194/30 1,054,694 3/1913 Langworthy 273/145 A 1,706,465 3/1929 Rosenblatt273/145 A UX 3,684,291 8/1972 Johmann 273/145 R FOREIGN PATENTS ORAPPLICATIONS 46,134 12/1935 France 273/144 A Primary Examiner--Anton O.Oechsle Assistant Examiner-Arn01d W. Kramer Attorney, Agent, or Firn-Wi1liam Anthony Drucker ABSTRACT An automatic dice shaking anddispensing device comprises a dice cup fixed to a rotary shaft. A switchin the bottom of the cup is activated by the weight of dice dropped intothe cup. The switch activates an electric motor which through gearmechanism drives a crank mechanism and timer at two different speeds.The fast driven crank mechanism agitates the dice cup by repeatedcamming the dice cup on its rotary shaft against restoring springtension while the slow turning timer has a cam fixed thereto whicheventually cams the dice cup far enough to dispense the dice. Finally,the timer and its cam releases the dice cup which is restored to itsupright position by the spring tension and the timer deactivates theelectric motor.

8 Claims, 11 Drawing Figures WIENTED AUBZ 71974 3.831 @948 FIG.5Q

1 AUTOMATIC ica SHAKHNG DEVICE The present invention relates to anautomatic disc shaking cup in which a die or dice in a cup is shakenleft and right, and then tilted down to cast out the die or dicecontained in the cup.

A main object of the invention is to provide a dice shaking cup which isautomatically shaken left and right, and casts out the die or dicecontained therein without any manual operation.

Another object of the invention is to provide an automatically shakendice cup which is electrically operated by means of an electric motorfor a given period of time, after the die or dice are cast into the cup.

A further object of the invention is to provide an automatically shakendice cup which makes all kinds of games using a die or dice moreamusing.

The objects and features of the invention will be better understood fromthe following detailed description taken with reference to theaccompanying drawings in which:

FIG. 1 is a perspective view of the first embodiment of the automaticdice shaking cup device according to the invention, partly broken away.

FIG. 2 is a side view of the first embodiment, partly broken away.

FIG. 3 is a plan view of the first embodiment.

FIG. 4 is an electrical switching circuit of the first embodiment.

FIGS. 5A to SC show each situation of the cup in the operation of thefirst embodiment.

FIG. 6 is a front sectional view of the second embodiment of theautomatic dice shaking cup device according to the invention, partlybroken away.

FIG. 7 is a side view of a part of the second embodiment.

FIG. 8 is a perspective view of the second embodiment, partly brokenaway.

FIG. 9 is an electrical switching circuit of the second embodiment.

Referring to the drawings of FIGS. 1 to SC, the first embodiment of anautomatic dice shaking cup according to the invention will now bedescribed.

Gear mechanism and crank mechanism are arranged within a frame member102 fixed on a frame member 101, which are described below. An electricmotor 103 is disposed at a bottom of the frame member 101, which motoris operated by an electric power source, for instance, a dry cell. Adriving shaft 103' of the motor 103 is attached to a pinion 104. A shaft106 is rotatably supported in the frame member 102, on which a pinion107 and a gear 105 are fixed. The gear 105 is engaged with the pinion104. A crank shaft 110 is rotatably supported in the frame member 102and an inner frame member 102 and has a gear 108 and a pinion 109 as onebody fixed thereon. The gear 108 is engaged with the pinion 107. One endof the crank shaft 110 is projected from the inner frame member 102 andforms a crank 110' engageable with a lever 112 as described below. Asleeve 117 is rotatably disposed concentric on and with respect to thecrank shaft 110. A shaft 114 is rotatably supported in the frame member102 and the inner frame member 102' and a gear 113 and a pinion 115 arefixed thereon. The pinion 115 is engaged with a gear 116 fixed on thesleeve 117. The gear 113 is engaged with the pinion 109.

One end of the sleeve 117 is projected from the frame member 102 and hasa cam 119 with a recess 123 fixed thereon. The sleeve 117 fixes a timer118 which consists of a metal disc 118' and an insulating disc 120 witha smaller diameter than that of the metal disc 118', attached to themetal disc 118 and having a projection 120' on its periphery projectingfrom the periphery of the metal disc 118". An electric contact plate 121is fixed on the frame member 102 through an insulator 122 in such amanner that one end of the electric contact plate 121 is in contact withthe periphery of the timer 118. A pin 125 is fixed on the inner surfaceof a lever 124, and is engageable with the cam 119. The lever 124 andthe lever 112 are combined as one body by a cross member to form aU-slhaped member which is rotatably supported on the frame member 102 bymeans of a mounting hole 126. A bend 112' is formed on the lever 112 andcan be in contact with the crank 110. Coil springs 127 and 129 arestretched between a part of the inner frame member 102' and a topportion of the lever 112, and a part of the frame member 102 and a topportion of the lever 124, respectively, so that the levers 112 and 124are tensioned oppositely to each other. A bracket 125 is formed on thetop portion of the lever 124 to hook one end of the coil spring 129. Acurved engaging hole 128 is formed in the upper portion of the lever124, into which a pin 130' fits, as described below. A rotary shaft 131is fixed on an attachment 132 of a cup 130, which is rotatably supportedat holes 131', 131' of triangular bearing members 102", 102" formed onthe frame members 102 and 102'. The pin 130' also is attached to theattachment 132 and is designed to be engaged with the curved engaginghole 128 for the shaking of the cup 130.

A metal ring 133 is attached to the side of the attachment 132. Acontact electrode 135 is fixed on the frame member 102 through aninsulating plate 134 in such a manner that it is in contact with themetal ring 133. A mounting disc 138 is moveably supported by asupporting axis 136 and a coil spring 137 in the bottom portion of thecup 130. An electrode 139 is attached to the back side of the mountingdisc 138. A stationary electrode is fixed opposite to the electrode 139at the bottom of the cup 130. When a die or dice are cast into the cup130, the electrodes 139, 140 come into contact with each other. Theelectrodes 139 and 140 are electrically connected to the rotary shaft131 and the metal ring 133, respectively. Reference numeral 141represents a dry cell, shown in FIG. 2.

Referring to FIG. 4, one terminal of the motor 103 is connected to oneterminal of the dry cell 141, and another terminal of the motor 103 isconnected to the electric contact plate 121 for the timer 118 and theelectrode 139 in the cup 130. Another terminal of the dry cell 141 isconnected to the metal disc 118 of the timer 118 and the electrode 140.Thus, the electrodes 139 and 140 form a switching means for the startingof the motor 103.

The operation of the first embodiment as described above, is as follows:

When a die or dice are cast into the cup 130, the mounting disc 138sinks somewhat so as to bring the electrode 139 fixed at the back sideof the mounting disc 138 into contact with the electrode 140 fixed atthe bottom of the cup 130. Consequently, since the dry cell 141 isconnected to both tenninals of the motor 103, the motor 103 immediatelystarts to rotate. The

rotation of the motor 103 is transmitted to the gear 108 through thepinion 104, the gear 105 and the pinion 107 to rotate the crank shaft110 at relatively high speed. Since the pinion 109 is engaged with thegear 113, the shaft 114 rotates. The rotation of the shaft 114 istransmitted to the sleeve 117 through the pinion 115 and the gear 116.The sleeve 117 rotates at a lower speed than the crank shaft 110.

Before the gear 116 starts to rotate, the insulating projecting 120 ofthe timer 118 fixed on the sleeve 117 lifts up the correspondingelectrode 121 so that the corresponding connection between bothterminals of the motor 103 is broken there. With the start of therotation of the gear 116 due to the actuating of the switching means inthe cup 130, the metal disc 118' and the insulating disc 120 of thetimer 118 start to rotate, and so the electrode 121 comes into contactwith the metal disc 118. Consequently the motor 103 continues to rotatein the self-holding.

On the other hand, the crank 110' of the crank shaft 110 which rotatesat a higher speed than the timer 118, collides with the bend 112' of thelever 112 every revolution to rotate the lever 112 clockwise around thehole 126. The springs 127, 129 work to restore the lever 112anticlockwise back around the hole 126. Thus, with the rotation of thecrank shaft 110, the crank 110' intermittently strikes the bend 112' toswing right and left the lever 112 as well as the lever 124 combinedwith the lever 112 as one body.

The pin 130 is slideably engaged with the curved engaging hole 128 ofthe lever 124, and therefore it is moved up and down along the curvedengaging hole 128 with the left and right swinging motion of the lever124. Thus, the pin 130 swings left and right around the rotary shaft 131and also the cup 130. Thus, the cup 130 swings left and right, or isshaken left and right with the swing motion of the lever 124.

While the cup 130 is shaken as mentioned above, the sleeve 117 andtherefore the cam 119 fixed at the top of the sleeve 117 rotate at thelower speed, as shown in FIG. a. When the recess 123 of the cam 119comes to an upper position, as shown in FIG. 58, it is engaged with thepin 125 fixed at the innerside of the lever 124, whereby the lever 124is regulated to be tilted greatly to one side without the swing motion.At that time, the crank shaft 110 rotates idle. Thus, the cup 130 istilted greatly to one side, as shown in FIG. SC, to cast out the die ordice contained therein. In the further rotation of the cam 119, the pin125 is released from the recess 123 after the die or dice has been castout. At that time, the timer 118 performs just one revolution, and theprojection 120' lifts up the electrode 121 to break the electricalconnection between the electrode 121 and the metal disc 118' of thetimer 118. Thus, the motor 103 stops to put the cup 130 into thestationary state.

One cycle of the operation is performed in the abovementioned manner.Next, referring to FIG. 6 to FIG. 9, the second embodiment of theinvention will be described.

A cup 202 is disposed at an upper position of a base member 201. Arotary shaft 203 is disposed at a lower position and has a gear 204fixed thereon. The gear 204 is engaged with a rack 206 formed on anupper portion of a hook-shaped lever 205 pivoted at its lower portion onthe base member 201. A coil spring 208 is stretched between a part ofthe base member 201 and one end portion of the lever 205 to tension thelever 205 clockwise. A sliding surface 205 with which a crank 209 of acrank shaft 225 is in contact, is formed on a recess portion of thelever 205, and a projection 205" with which a cam 210 is engageable, isformed on a center portion of the lever 205. The cam 210 is fixed at oneend of a main shaft 211, with which a disc 212 is combined as one body.The disc 212 is provided with a curved bend 212'. The cam 210, the discwith the curved bend 212 and the crank shaft 225 are interconnectedthrough a gear mechanism, as mentioned below. A motor 213 is arrangedunder the base member 201 as a drive source. A rotary shaft 216 isdriven by a pinion 214 fixed to the motor 213 and a gear 217 is engagedwith the pinion 214 on which a pinion 215 is fixed. The pinion 215 isengaged with a gear 218 supported rotatably on the main shaft 211. Apinion 219 is combined with the gear 218 as one body. The pinion 219 isengaged with a gear 222 fixed on a shaft 220 which is driven at areduced speed. A pinion 221 is fixed on the shaft 220 on which a coilspring 223 is stretched between one end of the pinion 221 and the framemember 201 in such a manner that the shaft 220 can move in the axialdirection. When a top end 220' of the shaft 220 rides on a curved bend212 of the disc 212, the shaft 220 is moved right hand against the coilspring 223 so that the pinion 224 fixed on the crank shaft 225 isreleased from the engagement with the gear 222. The crank shaft 225rotates only when the pinion 224 is engaged with the gear 222. The mainshaft 211 is driven by the motor 213 through the pinion 214, the gear217, the pinion 215, the gear 218, the pinion 219, the gear 222, thepinion 221 and the gear 226. A metal cylinder 227 is combined with thegear 226 as one body on the shaft 211, on which a timer 228 is fixed.The timer 228 consists of a metal disc 229 electrically connected to themain shaft 211 and the frame member 201, and an insulating disc 230 witha somewhat smaller diameter than that of the metal disc 229, fixed onthe metal disc 229. A projection 230' is formed on the periphery of theinsulating disc 230, projecting from the periphery of the metal disc229. An electrode 231 is disposed so as to be in contact with theperiphery of the timer 228. When the electrode 231 is lifted up on theprojection 230, the electrical connection between the metal disc 229 andthe electrode 231 is broken.

FIG. 4 shows the driving circuit of the motor 213 including theelectrode 231. One terminal of the motor 213 is connected to oneterminal of a dry cell 232 with another terminal of which is connectedto the frame member 201. Another terminal of the motor 213 is connectedto a starting switch 236, 237 which is disposed in the cup 202. Amounting disc 235 is supported by a supporting axis 234 and a coilspring 233 wound around the supporting axis 234 in such a manner that itcan move in a vertical direction. An electrode 236 is fixed on the backside of the mounting disc 235 and a stationary contact 237 is fixed on abottom of the cup 202. The stationary contact 237 is electricallyconnected to the rotary shaft 203 and then one terminal of the dry cell232. The electrode 236 is electrically connected to a metal ring 239fixed on an insulating attachment of the cup 202 through a lead line236. A plate contact 240 is fixed at a part of the base member 201through an insulating plate 241 so as to be in contact with the metalring 239. The plate contact 240 is electrically connected to oneterminal of the motor 213. The electrode 236 and the stationary contact237 form the starting switch of the motor 213 which is closed when thedie or dice are cast into the cup 202. The timer 228 is connected withthe starting switch 236, 237 in parallel to self-hold the driving of themotor 213 for a given period of time.

The embodiment of the invention as described above, is operated as thefollowing:

When the die or dice are cast into the cup 202, the mounting disc 235 ismoved downward by the weight of the die or dice to bring the electrode236 fixed on the back side of the mounting disc 235 into contact withthe stationary contact 237. Consequently the motor 213 is connected tothe electric power source to start. Before the starting of the motor213, the projection 230 of the timer 228 lifts up the electrode 231 sothat the electric connection is broken there. The rotation of the motor213 is transmitted to the main shaft 211 through the pinion 214, thegear 217, the pinion 215, the gear 218, the pinion 219, the gear 222,the pinion 221 and the gear 226 at a reduced speed. The electrode 231lifted up by the projection 230 comes into contact with the metal disc229 with the rotation of the main shaft 211, whereby the motor 213continues to rotate in the self-holding. The crank shaft 225 is drivenby the engagement of the pinion 224 with the gear 222. The crank 209 ofthe crank shaft 225 collides with the sliding surface 205 of the lever205 every revolution. Since the lever 205 is pivoted at the pin 207, thelever 205 is rotated anticlockwise everytime the crank 209 collides withthe sliding surface 205' of the lever 205. On the other hand, the lever205 isclockwise tensioned by the spring 208, and therefore the lever 205is shaken left and right with the rotation of the crank shaft 225. Thegear 204 engaged with the rack 206 formed on the upper portion of thelever 205 is rotated anti-clockwise and clockwise with the swing motionof the lever 205 around the pin 207. While the crank 209 is engaged withthe sliding surface 205', the gear 204 is rotated clockwise. When thecrank 209 is released from the sliding surface 205', the lever 205 israpidly drawn back by the spring 208 so that the gear 204 is rotatedanticlockwise. Thus, the cup 202 is shaken left and right, or is swungwith the swing motion of the lever 205. On the other hand, the timer 228fixed on the main shaft 211 is rotated at a lower speed than the crankshaft 225. And the cam 210 and the disc with the curved bend 212 fixedon the main shaft 211 are rotated at the same speed as the timer 228.The cam 210 is rotated clockwise in FIG. 7 and meanwhile pushes up theprojection 205" of the lever 205 from the downward position. When theprojection 205" of the lever 205 is pushed up by the cam 210, the gear204 is rotated on a larger angle, over about 45, by the rack 206 formedon the upper end of the lever 205, whereby the cup 202 is tilted greatlyclockwise or right hand in FIG. 7 to cast out the die or dice.Immediately after the tilting of the cup 202, the projection 205" of thelever 205 is rapidly released from the cam 210 and the lever 205 israpidly rotated clockwise by the spring 208 to put the cup 202 into theoriginal stationary state. On the other hand, the top end 220' of theshaft 220 in contact with the margin of the disc with the curved bend212' rides up on the curved bend 212 with the rotation of the disc 212to be pushed in a right hand direction in FIG. 8, so that the pinion 224fixed on the crank shaft 225 is released from the engagement of the gear222 to stop the rotation of the crank shaft 225. Thus, the lever 205 isreturned exactly to the original position by the spring 208. After thecup 202 is put into the stationary state, the disc with the curved bend212 moreover rotates to release the top end 220 from the engagement ofthe curved bend 212. Therefore, the pinion 224 again is engaged with thegear 222 by the function of the spring 223. In the above mentionedoperations, the timer 228 rotates exactly once so that the projection230' lifts up the electrode 231 to stop the self-holding of the motor213 and therefore stop the rotation of the motor 213.

Although the invention has been particularly shown and described, it iscontemplated that various changes and modification may be made withoutdeparting from the scope of the invention as set forth in the followingclaims.

What is claimed is:

1. An automatically shaken dice cup comprising an upright cup, a rotaryshaft on a frame fixed to said cup, an electric motor, a switching meansfor energizing said electric motor on the casting of a die or dice intosaid cup, said switching means being arranged in said cup, a pin fixedon said cup, a pivoted U-shaped lever on said frame centrally tensionedby springs, a crank shaft, one arm of said Ushaped lever being engagedwith said pin, another arm of said U-shaped lever coming into and out ofcontact with the crank portion of said crank shaft when said crank shaftis rotated, a sleeve on said crank shaft concentric with and rotatablewith respect to said crank shaft, a cam fixed at one end of said sleeveand having a peripheral recess, an engaging pin fixed on said one arm ofsaid U-shaped lever, said engaging pin engageable with said recess ofsaid cam to considerably tilt said cup when said sleeve is rotated, atimer means capable of self-holding the electrical connection of saidelectric motor to an electric source for a given period of time,controlled by a contact disc on said sleeve, said frame supporting aplurality of gear mechanisms connecting a shaft on said electric motorto said crank shaft and said crank shaft to said sleeve, whereby saidcup on the dropping of dice therein is shaken left and right on itsrotary shaft by the crank portion of the crank shaft repeatedly pivotingthe U-shaped lever against the tension of the springs and so said pinfixed on said cup for a given period of time, then tilted.

greatly by said recess of the cam engaging said engaging pin to cast outthe die or dice and returned to the original upright position and themotor deenergized.

2. An automatically shaken dice cup according to claim 1 wherein saidswitching means comprises an electrode fixed on the back side of amounting disc moveably supported by a supporting axis and a coil spring,and a stationary contact fixed on the bottom of said cup.

3. An automatically shaken dice cup according to claim 1 wherein saidtimer consists of a metal disc and an insulating disc with a somewhatsmaller diameter than that of said metal disc, and a projection on theperiphery of said insulating disc, projecting from the pe riphery ofsaid metal disc, said disc and projection in contact with a resilientelectric contact plate.

4. An automatically shaken dice cup according to claim 1 wherein saidelectric source is a dry cell.

5. An automatically shaken dice cup according to claim 1 wherein saidcontact disc controls an electrode 6. An automatically shaken dice cupaccording to claim 1 wherein said crank shaft is rotated at a higherspeed than the said rotatable sleeve by means of said gear mechanisms.

7. An automatically shaken dice cup comprising a base frame membersupporting a cup, a rotary shaft fixed to said cup, an electric motor, aswitching means for energizing said electric motor upon the casting ofthe die or dice into said cup, said switching means being arranged insaid cup, a crank shaft, a pinion fixed on said rotary shaft, ahook-shaped lever pivoted at a part of said base member, a spring beingconnected to a part of said hook-shaped lever and another part of saidbase member, a rack formed on an upper portion of said hook-shapedlever, said pinion being engaged with said rack, a main shaft, a timerfixed at one end of said main shaft, a cam fixed at the other end ofsaid main shaft, a disc with a raised curved bend portion on the sidethereof combined with said cam as one body on said main shaft, anothershaft parallel to said main shaft supported slideably in the axialdirection thereof, one end of said another shaft being in contact withthe side of said disc with said raised curved bend portion of said discaxially sliding said another shaft when said disc rotates, a coil springwound around said anothershaft between a pinion fixed on said anothershaft and a part of said base member to press said one end of saidanother shaft against the side of said disc, said timer being capable ofself-holding the electrical connection of said electrical motor to anelectric source for a given period of time, said hook-shaped leverhaving a sliding surface coming into contact with a crank portion ofsaid crank shaft and a projection engagable with said cam, gearmechanism means interconnecting said crank shaft, said another shaft andsaid main shaft with a shaft of the electric motor for differentrotational speeds of said shafts, whereby on dice being inserted intosaid cup said cup is shaken left and right by said crank portion of saidcrank shaft for a given period of time, then tilted considerably by saidcam camming said hooked shaped lever to cast out the die or dice andrecovered to its original position and said motor deenergized.

8. An automatically shaken dice cup according to claim 7 wherein saidcrank shaft is rotated at a higher speed than said main shaft by meansof said gear mechanism means.

1. An automatically shaken dice cup comprising an upright cup, a rOtaryshaft on a frame fixed to said cup, an electric motor, a switching meansfor energizing said electric motor on the casting of a die or dice intosaid cup, said switching means being arranged in said cup, a pin fixedon said cup, a pivoted U-shaped lever on said frame centrally tensionedby springs, a crank shaft, one arm of said U-shaped lever being engagedwith said pin, another arm of said U-shaped lever coming into and out ofcontact with the crank portion of said crank shaft when said crank shaftis rotated, a sleeve on said crank shaft concentric with and rotatablewith respect to said crank shaft, a cam fixed at one end of said sleeveand having a peripheral recess, an engaging pin fixed on said one arm ofsaid U-shaped lever, said engaging pin engageable with said recess ofsaid cam to considerably tilt said cup when said sleeve is rotated, atimer means capable of self-holding the electrical connection of saidelectric motor to an electric source for a given period of time,controlled by a contact disc on said sleeve, said frame supporting aplurality of gear mechanisms connecting a shaft on said electric motorto said crank shaft and said crank shaft to said sleeve, whereby saidcup on the dropping of dice therein is shaken left and right on itsrotary shaft by the crank portion of the crank shaft repeatedly pivotingthe U-shaped lever against the tension of the springs and so said pinfixed on said cup for a given period of time, then tilted greatly bysaid recess of the cam engaging said engaging pin to cast out the die ordice and returned to the original upright position and the motordeenergized.
 2. An automatically shaken dice cup according to claim 1wherein said switching means comprises an electrode fixed on the backside of a mounting disc moveably supported by a supporting axis and acoil spring, and a stationary contact fixed on the bottom of said cup.3. An automatically shaken dice cup according to claim 1 wherein saidtimer consists of a metal disc and an insulating disc with a somewhatsmaller diameter than that of said metal disc, and a projection on theperiphery of said insulating disc, projecting from the periphery of saidmetal disc, said disc and projection in contact with a resilientelectric contact plate.
 4. An automatically shaken dice cup according toclaim 1 wherein said electric source is a dry cell.
 5. An automaticallyshaken dice cup according to claim 1 wherein said contact disc controlsan electrode in contact with the periphery of said timer contact disc.6. An automatically shaken dice cup according to claim 1 wherein saidcrank shaft is rotated at a higher speed than the said rotatable sleeveby means of said gear mechanisms.
 7. An automatically shaken dice cupcomprising a base frame member supporting a cup, a rotary shaft fixed tosaid cup, an electric motor, a switching means for energizing saidelectric motor upon the casting of the die or dice into said cup, saidswitching means being arranged in said cup, a crank shaft, a pinionfixed on said rotary shaft, a hook-shaped lever pivoted at a part ofsaid base member, a spring being connected to a part of said hook-shapedlever and another part of said base member, a rack formed on an upperportion of said hook-shaped lever, said pinion being engaged with saidrack, a main shaft, a timer fixed at one end of said main shaft, a camfixed at the other end of said main shaft, a disc with a raised curvedbend portion on the side thereof combined with said cam as one body onsaid main shaft, another shaft parallel to said main shaft supportedslideably in the axial direction thereof, one end of said another shaftbeing in contact with the side of said disc with said raised curved bendportion of said disc axially sliding said another shaft when said discrotates, a coil spring wound around said another shaft between a pinionfixed on said another shaft and a part of said base member to press saidone end of said another shaft against the side of said Disc, said timerbeing capable of self-holding the electrical connection of saidelectrical motor to an electric source for a given period of time, saidhook-shaped lever having a sliding surface coming into contact with acrank portion of said crank shaft and a projection engagable with saidcam, gear mechanism means interconnecting said crank shaft, said anothershaft and said main shaft with a shaft of the electric motor fordifferent rotational speeds of said shafts, whereby on dice beinginserted into said cup said cup is shaken left and right by said crankportion of said crank shaft for a given period of time, then tiltedconsiderably by said cam camming said hooked shaped lever to cast outthe die or dice and recovered to its original position and said motordeenergized.
 8. An automatically shaken dice cup according to claim 7wherein said crank shaft is rotated at a higher speed than said mainshaft by means of said gear mechanism means.